*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Sans","Noto Sans JP",sans-serif;-webkit-font-smoothing:antialiased;line-height:1.6;background:#f7f7f4;color:#0f1115}
a{text-decoration:none;color:inherit}
.wrap{max-width:1140px;margin:0 auto;padding:0 28px}
main{padding-top:64px;min-height:100vh}

/* header */
header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(15,17,21,.85);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08)}
.bar{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:baseline;gap:10px;color:#fff}
.brand .logo{font-weight:800;letter-spacing:.22em;font-size:20px}
.brand .tag{font-size:10px;letter-spacing:.18em;color:rgba(255,255,255,.5);text-transform:uppercase}
nav.menu{display:flex;gap:24px;align-items:center}
nav.menu .links{display:flex;gap:24px}
nav.menu a{color:rgba(255,255,255,.72);font-size:13px;letter-spacing:.04em;transition:color .2s}
nav.menu a:hover{color:#fff}
.lang{display:flex;gap:2px;border:1px solid rgba(255,255,255,.18);border-radius:999px;padding:3px}
.lang a{color:rgba(255,255,255,.55);font-size:11px;font-weight:700;letter-spacing:.06em;padding:4px 9px;border-radius:999px;transition:.2s}
.lang a.on{background:#fff;color:#0f1115}
.burger{display:none;background:none;border:none;color:#fff;font-size:22px;cursor:pointer}
@media(max-width:860px){
  nav.menu{gap:14px}
  nav.menu .links{display:none}
  .burger{display:block}
  nav.menu.open .links{display:flex;flex-direction:column;position:fixed;top:64px;left:0;right:0;z-index:90;height:calc(100vh - 64px);background:#0f1115;padding:22px 28px;gap:18px;border-bottom:1px solid rgba(255,255,255,.1)}
}
@media(max-width:520px){
  .brand .tag{display:none}
  .brand .logo{font-size:18px}
}

/* shared type */
h1{font-size:clamp(34px,6vw,68px);line-height:1.05;font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(26px,3.6vw,40px);font-weight:800;letter-spacing:-.01em;line-height:1.15}
h3{font-size:19px;font-weight:700}
.eyebrow{font-size:12px;letter-spacing:.22em;text-transform:uppercase;opacity:.6;margin-bottom:14px}
.lead{font-size:clamp(16px,1.6vw,19px);opacity:.85;max-width:640px}
.lead.sm{margin-top:12px}
.mt{margin-top:64px}
.crumb{font-size:13px;letter-spacing:.04em;opacity:.6;display:inline-block;margin-bottom:28px}
.crumb:hover{opacity:1}
.block{padding:96px 0}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;font-size:14px;font-weight:700;letter-spacing:.02em;transition:.25s;cursor:pointer;border:none}
.cta-row{margin-top:46px}

/* footer */
footer{background:#070912;color:rgba(255,255,255,.6);padding:54px 0 40px}
.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px;align-items:flex-end}
.foot .fb .logo{color:#fff;font-weight:800;letter-spacing:.22em;font-size:18px}
.foot .fb .nm{font-size:12px;margin-top:6px}
.foot .fl{display:flex;gap:22px;flex-wrap:wrap;font-size:13px}
.foot .fl a:hover{color:#fff}
.foot .copy{flex-basis:100%;margin-top:34px;font-size:11px;opacity:.4;letter-spacing:.06em}

/* ===== INDEX (目次) ===== */
.page-index{background:#0f1115;color:#fff}
.page-index footer{border-top:1px solid rgba(255,255,255,.06)}
.hero-i{padding:150px 0 70px;position:relative;overflow:hidden}
.hero-i .glow{position:absolute;width:680px;height:680px;border-radius:50%;background:radial-gradient(circle,rgba(94,124,255,.28),transparent 62%);top:-220px;right:-160px;filter:blur(8px)}
.hero-i h1{position:relative}
.accent{background:linear-gradient(90deg,#7c9bff,#46e0c8);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-i .lead{margin-top:24px;color:rgba(255,255,255,.7)}
.dir{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;padding-bottom:110px}
@media(max-width:860px){.dir{grid-template-columns:1fr}}
.card{position:relative;border-radius:20px;padding:34px 30px;min-height:280px;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden;transition:transform .35s,box-shadow .35s}
.card:hover{transform:translateY(-7px)}
.card .num{font-size:13px;letter-spacing:.2em;opacity:.7}
.card h3{font-size:24px;margin:14px 0 10px}
.card p{font-size:14px;line-height:1.55;opacity:.82}
.card .go{margin-top:22px;font-size:13px;font-weight:700;letter-spacing:.05em}
.c-ai{background:linear-gradient(150deg,#10162e,#1b1140);color:#fff;box-shadow:0 0 0 1px rgba(124,155,255,.25)}
.c-ai:hover{box-shadow:0 20px 50px rgba(94,124,255,.3)}
.c-mf{background:linear-gradient(150deg,#11202b,#0d2e3a);color:#fff;box-shadow:0 0 0 1px rgba(90,170,210,.22)}
.c-mf:hover{box-shadow:0 20px 50px rgba(80,160,210,.28)}
.c-pr{background:linear-gradient(150deg,#2a1d10,#26341d);color:#fff;box-shadow:0 0 0 1px rgba(190,150,90,.25)}
.c-pr:hover{box-shadow:0 20px 50px rgba(180,140,80,.3)}

/* ===== AI ===== */
.page-ai{background:#070912;color:#eaeefc}
.page-ai .hero{padding:120px 0 60px;position:relative;overflow:hidden}
.page-ai .grid-bg{position:absolute;inset:0;background-image:linear-gradient(rgba(124,155,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(124,155,255,.07) 1px,transparent 1px);background-size:46px 46px;-webkit-mask-image:radial-gradient(circle at 70% 20%,#000,transparent 70%);mask-image:radial-gradient(circle at 70% 20%,#000,transparent 70%)}
.page-ai h1{position:relative}
.page-ai .accent{background:linear-gradient(90deg,#7c9bff,#46e0c8,#b06bff);-webkit-background-clip:text;background-clip:text;color:transparent}
.page-ai .lead{color:rgba(234,238,252,.72);margin-top:22px}
.svc{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
@media(max-width:760px){.svc{grid-template-columns:1fr}}
.svc .item{border:1px solid rgba(124,155,255,.18);border-radius:16px;padding:28px;background:linear-gradient(160deg,rgba(124,155,255,.06),transparent);transition:.3s}
.svc .item:hover{border-color:rgba(124,155,255,.5);transform:translateY(-4px)}
.svc .item .ic{font-size:24px;margin-bottom:14px}
.svc .item h3{margin-bottom:8px}
.svc .item p{font-size:14px;opacity:.72}
.page-ai .btn{background:linear-gradient(90deg,#7c9bff,#46e0c8);color:#070912}

/* ===== MANUFACTURING ===== */
.page-manufacturing{background:#eef2f5;color:#16242e}
.page-manufacturing .hero{background:linear-gradient(135deg,#16323f,#1f4a5c);color:#fff;padding:130px 0 80px}
.page-manufacturing .hero h1{color:#fff}
.page-manufacturing .hero .lead{color:rgba(255,255,255,.82);margin-top:22px}
.page-manufacturing .hero .crumb{color:rgba(255,255,255,.7)}
.steel{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#cdd6dc;border:1px solid #cdd6dc}
@media(max-width:760px){.steel{grid-template-columns:1fr}}
.steel .cell{background:#fff;padding:34px 28px;transition:.25s}
.steel .cell:hover{background:#f4f8fa}
.steel .cell .n{font-size:12px;letter-spacing:.2em;color:#3b7d96;font-weight:700}
.steel .cell h3{margin:12px 0 8px}
.steel .cell p{font-size:14px;color:#475762}
.flag-row{display:flex;gap:18px;flex-wrap:wrap;margin-top:30px}
.flag-row .f{background:#fff;border:1px solid #cfd9df;border-radius:10px;padding:10px 18px;font-size:14px;font-weight:600}
.page-manufacturing .btn{background:#1f4a5c;color:#fff}

/* ===== PRODUCTS ===== */
.page-products{background:#f6f1e7;color:#33271a}
.page-products .hero{padding:130px 0 70px}
.page-products .hero h1{font-family:Georgia,"Times New Roman",serif;font-weight:700}
.page-products .hero .lead{margin-top:22px;color:#6b5a44}
.page-products .crumb{color:#8a7458}
.prod{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
@media(max-width:760px){.prod{grid-template-columns:1fr}}
.prod .p{background:#fffdf8;border:1px solid #e6dcc7;border-radius:18px;overflow:hidden;transition:.3s}
.prod .p:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(120,90,40,.14)}
.prod .p .top{height:140px;display:flex;align-items:center;justify-content:center;font-size:46px}
.prod .p.coffee .top{background:linear-gradient(135deg,#3d2b1f,#6f4e37)}
.prod .p.pepper .top{background:linear-gradient(135deg,#2f3a23,#54632f)}
.prod .p .body{padding:26px}
.prod .p h3{font-family:Georgia,serif;margin-bottom:8px}
.prod .p p{font-size:14px;color:#6b5a44}
.page-products .btn{background:#6f4e37;color:#fff}

/* ===== ABOUT ===== */
.page-about{background:#fff;color:#16242e}
.page-about .hero{background:#0f1115;color:#fff;padding:130px 0 70px}
.page-about .hero .lead{color:rgba(255,255,255,.72);margin-top:20px}
.page-about .hero .crumb{color:rgba(255,255,255,.6)}
.facts{display:grid;grid-template-columns:200px 1fr;max-width:760px}
.facts dt{padding:18px 0;border-bottom:1px solid #e6e9ec;font-weight:700;font-size:14px;letter-spacing:.04em}
.facts dd{padding:18px 0;border-bottom:1px solid #e6e9ec;font-size:15px;color:#3d4b54}
@media(max-width:600px){.facts{grid-template-columns:1fr}.facts dt{border:none;padding-bottom:2px}}

/* ===== CONTACT ===== */
.page-contact{background:#0f1115;color:#fff}
.page-contact .hero{padding:130px 0 80px}
.page-contact .lead{color:rgba(255,255,255,.72);margin-top:20px}
.contact-to{margin-top:14px;font-size:14px;opacity:.85}
.contact-to a{color:#7c9bff;font-weight:700}
.alert{margin-top:22px;padding:12px 16px;border-radius:10px;font-size:14px;max-width:560px}
.alert.ok{background:rgba(70,224,200,.14);border:1px solid rgba(70,224,200,.5)}
.alert.err{background:rgba(255,99,99,.14);border:1px solid rgba(255,99,99,.5)}
.form{max-width:560px;display:flex;flex-direction:column;gap:16px;margin-top:24px}
.form label{font-size:13px;letter-spacing:.04em;opacity:.7;margin-bottom:6px;display:block}
.form input,.form textarea{width:100%;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:10px;padding:13px 15px;color:#fff;font-size:15px;font-family:inherit}
.form input:focus,.form textarea:focus{outline:none;border-color:#7c9bff}
.form .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.page-contact .btn{background:#fff;color:#0f1115;align-self:flex-start}